<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    body {
      margin: 0;
      height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .penrose {
      width: 20em;
      height: 20em;
      position: relative;
      top: -1em;
      left: -3em;
    }

    .penrose div {
      position: absolute;
      width: inherit;
      height: inherit;
      background-color: limegreen;
      clip-path: polygon(
        57% 0,
        75% 0,
        26% 85%,
        89.5% 85%,
        98.4% 100%,
        0 100%
      );
    }

    .penrose div:nth-child(2) {
      top: 18.3%;
      left: 43.3%;
      transform: rotate(120deg);
      filter: brightness(0.66);
    }

    .penrose div:nth-child(3) {
      top: 46.5%;
      left: 5.9%;
      transform: rotate(240deg);
      filter: brightness(0.33);
    }
  </style>
</head>
<body>
  <figure class="penrose">
    <div></div>
    <div></div>
    <div></div>
  </figure>
</body>
</html>